air brake


Definition of air brake

1 : a brake operated by a piston driven by compressed air
2 : a surface that may be projected into the airstream for increasing drag and lowering the speed of an airplane

Examples of air brake in a Sentence

Recent Examples on the Web After the plant closure announcement, the air brake tester found a job making dashboards and bumpers for Toyota. Lydia Depillis, ProPublica, 30 June 2021 Called Porsche Adaptive Aerodynamics, or PAA, the pieces also respond as an air brake when decelerating at high speeds. Mark Phelan, Detroit Free Press, 15 Apr. 2021 Excerpt from Nameless, by Dean Koontz CHAPTER ONE The sky is the blue of a birthing blanket, the day newborn and filled with the light of innocence, when the air brakes of the bus whistle softly, waking him. Christian Holub,, 11 Nov. 2019 Slowing from high speed will be the job of the car's air brake and parachute, both of which are controlled from the steering wheel like the rocket. Jonathan M. Gitlin, Ars Technica, 24 Nov. 2018 Suspension and air brake aside, the 570S retains the key components that define a McLaren. Ezra Dyer, Popular Mechanics, 12 Feb. 2016 Those angle cocks had come into contact with the underframe of the third train car, closing the valves and rendering the air brakes ineffective. John Kelly, Washington Post, 13 Jan. 2018 More in Rumble Seat With the help of its wangling, dangling rear wing/air brake, the Senna’s deceleration is likewise world-historical: from 187 mph to 0 in the space of 705 feet. Dan Neil, WSJ, 31 May 2018 The plane landed with nearly all engines at idle, air brakes on. Kyle Mizokami, Popular Mechanics, 1 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'air brake.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of air brake

1846, in the meaning defined at sense 1

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Time Traveler for air brake

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The first known use of air brake was in 1846

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Dictionary Entries Near air brake


air brake

air-break switch

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Cite this Entry

“Air brake.” Dictionary, Merriam-Webster, Accessed 25 Oct. 2021.

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